1. Which of the following statements is true concerning human blood? a) The blood of all normal humans contains red and white cells, platelets, and plasma.
b) Some human populations normally lack the ability to produce plasma.
c) Proteins are not normal components of human blood.
2. Erythrocyte is another name for a:
a) red cell
b) white cell
c) platelet
3. Which of the following blood components provide the major defense for our bodies against invading bacteria and viruses?
a) red cells
b) white cells
c) platelets
4. The relatively clear liquid medium which carries the other cells of blood is called:
a) lipid
b) antibody
c) plasma
5. Which of the following are likely to increase in quantities when the body is under attack from bacteria?
a) erythrocytes
b) leukocytes
c) thrombocytes
6. When blood clumps or forms visible islands in the still liquid plasma, it is called:
a) clotting
b) agglutination
c) none of the above
7. Antigens are:
a) found on the surface of red cells
b) kinds of red cells that identify a blood type
c) relatively large carbohydrate molecules
d) a and b
8. Most of the volume of normal human blood is composed of:
a) red cells
b) hemoglobin
c) plasma
d) white cells